Tipping vehicle



Oct. 8, 1929.

TIPPING VEHICLE Original Filed July 3, 1923- 2 Sheets-Sheet l |h MM s E. ALLEY ET AL 1,730,962

Oct. 8, 1929. s. E. ALLEY ET AL TI'PPING VEHICLE Original Filed July 6, 1925 2 Sheets-Sheet 2 l r 5 l ll Patented Oct. 8, 1929 UNITED srarss PATENT oee'icn STEPHEN EVANS ALLEY, OF LONDON, AND ARTHUR GYRIL, HUTT, OF SHREFWSBURY, ENGLAND, ASSIGNORS TO THE SENTINEL WAGGON WORKS LIMITED, OF LONDON,

ENGLAND, A BRITISH COMPANY TIPPING VEHICLE Original application filed July 3, 1923, Serial No. 649,386, and in Great Britain'J'uly 28, 1922. Divided and this application filed April 7, 1928. Sei'iaLNo. 268,289.

This invention relates to tipping-vehicles, and has for one of its objects to provide a more eflicient form of tipping mechanism in conjunction with an improved mounting of the vehicle body on the chassis frame. The present application is a division of application Serial No. 649,386, resulting in Patent No. 1,674,495. a

The invention is concerned with that type of tipping-vehicle in which the portion thereof to be tipped can be tipped in more than one direction and is operated for tipping by a piston working in a cylinder. In this type of vehicle adapted for tipping in more than one direction, it has been previously proposed so to mount the cylinder that it shall tilt as the tipping progresses. For a number of reasons it isundersirable to have the cylinder movable in this manner. A one-way tipping-vehicle has also been proposed in which the cylinder is mounted on one vehicle part rigidly to preclude tilting of the cylinder relatively to the part on which it is mounted while the cylinder plunger had a connecting rod with a single pin hinging joint at each end. Thus, the cylinder is left relatively stationary while the necessary tilting is taken up by the piston-rod or the like.

According to a primary feature of the present invention, there is provided a tipping-vehicle comprising the combination with a supporting frame, of a body pivotally supported thereby so as to tilt to either side or rear end about either of two lateral longitudinal axes or about a transverse axis that intersects the latter, a single vertical cylinder rigidly mounted on the frame underneath the body, a piston working in said cylinder, and a single connecting rod having one end universally jointed to said piston and its other end universally jointed directly to said body at a point situated in the central longitudinal line of the body; Thus the body of the vehicle can be tipped about any one of a number of axes without causing the cylinderto tilt relatively to the vehicle-part on which it is mounted.

For a more complete understanding of the invention there will now be described, by way of example only and with reference to the is adapted for tipping about three axes. In

this figure, many of the vehicle-parts are removed and there is shown in dotand-dash lines one of the positions occupied during tipping;

the parts shown in Figure 1, and in this fig ure there are shown in dot-and-dash lines, two other positions occupied during tipping;

Figure 3 is a plan ofthe vehicle on a scale smaltller than that of the preceding figures; anc

Figure 4L is a section taken on the line 4+4 in Figure 1.

Like reference numerals indicate like throughout the drawings.

Referring firstly to Figures 1 and 2, the tipping-part or body of the vehicle is indicated at 10 and the relatively stationary part or chassisframe at 11. Towards its forward end the tipping-part 10 carries at each side of the vehicle a fork 12 which bears upon a cylindrical support 13 rigidly secured to the vehicle-part 11. Towards its rear end the tipping-part 10 also carries, at each side, a double fork 14. These double forks are each received upon the cylindrical ends 15 of cruciform supporting members which are constructed as follows The cylindrical portions 15 are connected together by an intermediate portion 16 hava ing a flat-sided perforation through it, and this perforation is slipped over a correspondingly shaped projection 17 from a conical support 18. These conical supports lie transversely of the vehicle and are in axial alignment with each other, their axis being the axis about which the tipping-part 10 is tilted for rearward tipping, namely as shown in chain lines in Figure 1. Beyond each fiatted portion 17 is a screwed cylindrical portion 19 on Figure 2 is a rear elevation of certain of i parts ice cylinder is a cylinder 21.

which is received a nut whereby the mem ber 15, i6 is secured in place on the said fiatted portion. The axis of the cylindrical members 15 at each side of the vehicle is in alignment with the axis of the corresponding cylindrical member 13 and the two axes thus formed along the sides of the vehicle are the axes about which the transverse tipping takes place; see the chain lines in Figure 2. Further, these two axes of transverse tipping are intersected by the axis aforesaid of the conical supports 18 about which rearward tipping takes place. Suitable clamps or tie-members (not shown) are provided for securing the body 10 to the chassis-frame 11 and when tipping is required the clamps will be released according to the direction in which the tipping is to occur.

Rigidly mounted upon the vehicle-part 11 This cylinder has its upper end partially closed by an inturned flanged plate 22, and the cylinder has an external flange 23 whereby it is secured in place. The lower end of the cylinder is closed by a cover 2 and a piston 25 reciprocates inside the cylinder. T his piston is formed with a central housing 26 for blocks 27 which receive the ball-shaped end 28 of a rod 29. The other end of this rod is similarly shaped at 30 and is received in blocks 31 housed in a casing 32 which depends from a support 33 carried upon the tipping-part 10. Fluid under pressure is admitted to and exhausted from the cylinder 21, below the piston 25, through a suitable conduit such as 34. Conveniently, this fluid may be water from a reservoir 35 maintained under steam pressure.

It is preferred to employ only a single and piston as just described and to arrange the same at a suitable central position in the vehicle so that the power will be available for tipping in all three directions, but it will be appreciated that more than one cylinder and piston arranged on the central longitudinal line of the vehicle may be employee for this purpose if desired.

The general scheme of operating the ve hicle may be similar to that already adopted in connection with the well-known vehicles in which the cylinder is pivoted to tiltduring tipping, but it wi l be appreciated that it is advantageous to employ the arrangement according to the present invention since by always maintaining the cylinder stationary in regard to the vehicle-part on which it is carried, the connections for the supply of fluidpressure can be more satisfactorily maintained. The arrangement according to the present invention also presents adiantages which need not be herein detailed.

It is to be understood that the invention is not limited to the precise constructional details hereinbefore set forth. For example, for some constructions it is unnecessary to employ ball-joints at the ends of the rod 29 as some other form of universal joint may be satisfactory for some arrangements of tipping.

Vi e claim:

1. i tipping-vehicle comprising the combination of a supporting frame, four lateral pivotal supports arranged thereon in pairs situated one pair towards each end of the frame, the supports of the pair at one end being cruciform and providing one transverse axis of pivoting and also two longitudinal axes of pivoting, which latter are co-aXial each with the axis of pivoting of a pivotal support at the other end, a body supported by said pivotal supports so as to tilt to either side or rear end, a vertical cylinder rigidly mounted on the frame underneath the body, a piston working in said cylinder, and a single connecting rod having one end universally jointed to said piston and its other end universally jointeo directly to said body at a point situated in the central longitudinal line of the body.

2. A tippingvehicle comprising the combination of a supporting frame, four lateral pivotal supports arranged thereon in pairs situated one pair towards each end of the frame, tie supports of the pair at one, end being each cruciform and providing one transverse axis of pivoting and also two longitudinal axes of pivoting, which latter are coaxial each with the aXis of pivotingof a pivotal support at the other end, a body having forks supported each by one of said pivotal supports so as to tilt to either side or rear end, a vertical cylinder rigidlymounted on the frame underneath the body, a piston working in said cylinder, and a connecting-rod having one end universally jointed to said piston and its other end universally jointed directly to said body at a point situated in the central longitudinal line of the body.

In testimony whereof we have signed our names to this specification.

STEPHEN EVANS ALLEY. ARTHUR CYRIL HUTT. 

